Sheet-printing press.



B, F. UPHAM.

SHEET PRINTING PRESS. APPLICATION FILED NOV. 20. I915- RENEWED [10V- l-5. 19 6 1,231,463..

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a. F. UPHAM.

SHEET PRINTING PRESS.

APPLICATION FILED NOV- 20. 19!!)- IIENEWED I0- 15. IBIS.-

Patented June 26, 1917.

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B. F. UPHAM.

SHEET PRINHNG PRESS. APPLICATION FILED NOV- 20. I915- RENEVIED NOV- l5. I918. 1,231,463.

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Patented June 26 E Uphdm Burl SHEET rqmnu'e mess} APPLICATION FILED NOV 20,1915- RENEWED NOV. I5.1EH6.

Paten md'J une 26, 19:17.

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atio rungs I indicated in t Stopr: *(fl :1 nd. tho prot UNITED -sTATno,mirhh'ir OFFICE,

BURT 1. W11, 0] BOBTOIN; MASSAGHUSETWEE'I .tfiEIG-MOR TO UNITED PRINTING IAOHIIEBY COMPANY, OF BOSTON, MAShAfiHUElIETTS A GORFORATION 0! Spnoiflchtion of Lottorizi limit IlPntontod June 26, 1917.

Application filed Hovembor 1915, Serial No. (limit, Iltunowod November 15, 1916 Serial No. 131,571.

To all whomit may concern:

Be it known that I, BURT F. UPHA'MI, a citizen of the United States, reoidiing tit Boston, in the county of Snii'olk anti lffltfligl; of Massachusetts, havo invented certain now and useful Improvomonto in Sheet-Printing Presses; and I horr 1y declare that tho tol lowing is itfllll, o our oini. exact descrip tion thereof, 1 oronoo hoiiig llfi-(l to tho aoorinnpnnying t'lrawings, which iorm part of this specification. I

This invention is an improvement in shoot printing presses, proforsihly of: tho typo in which rotary iI[1]I)1""SSlOl'l cylinders oinployod, as shown for orcnmplo in my Patents No. I1,(l116,t 59 dated ll ehruary 6, 1912, and No. 1,087.955, datod Full. 1.0, 1.914, and the invention has particular reference to pr stein such as shown in In mid patontstin co 118%- tion with which autonmtio oet flooding (lo vices are employed, snoh for example {LS shown in my Pntont No, 1,082,374; of Doc. 23, 1913, by which tho-shoots ore fiflltfll'llfltl (sally foil to the point of iznro by the lHlprossion lindor n dwhioh nntonintio .loorling (l oily provided with mount; whorl y if t t not foal vIn timoi or iinipro iorly pi *l'ltfil'l or is mirfoct tho i nine iilsm n no un ioin so no to To any oilsot ini. i i n pi 1r. 1 trio, tho two upon the packing (liil haul '. or printing oi? such. through the row chine. v

i The object oi" the 'pllEESSGl'li; invention is to absolutely insure that a clo'foo we or niii$- placed slioetslmll not ho tall (lor gri iii'iors without :sto giping either tho pressor the foe In the proton iorm oi the. iiwontil'm. l (inn logs, the slnanzat do out oi? ir 'istering pooi. tion, or is imp if (it, tho rno ianisiii whore by the devil which forward tho shoot from tho feedor shall ho render-oil inotl'ootivo so mo: :1. ro [)POVllltbl'l tmatorsiind :1 shoot it that no other shoot shall, he fed torvuril imtil tho oheot, if morely-rnisplooerh has in properly :)ositionotl: or tho shoot it inlpor feet hits been" roi'ni'ivo also sinniltanoonoly the cylinder shall be tnrown oil" impression; also simultaneonoly' the grippers of tho cyiv the oylin indor ovontod from soizing such hood shoot, preferably by at tho seizing oonsly if desired lo oiro gl or left in posiinl'inimoo of such dotoo ti ho. .i ti otiono occur Witl nit stopping the of tho 4 hoizi'vy portions of l nit prosont practical xntion, indicated in he oon'i ing rolls of the thrown mt of notion when an imiopi 1 sheet is detocted,'and ion. is tliirmvn off the press ore: loft op 11 .ihttomil of looing closed at the soizing 1t. thoy will not take the shoot; on the hot gagos are left down in suoh pmition that tho do :tivo shoot cam not Mimi o by moo ti n or jarring; otherwise tho i of the press and ion, so that after 1:; properly positionod, t it 'ronim'ocl, the op L, ,i [32 i'niirnnil shoots in.

i to to ros juno tl'ioi'r toll speed, and the and printed Without time or oi: power in bringing 'v; ports iii the p r to a stop; H h hen v parts again or of thorn up to fiill speed parts continue to 7 ml movornon .iixh int go through ill full spoed; and 'POI't'lOllS oi. the. i9 fooiloi." as n ti'mlly ongngo with ,ritto acnil dop or elated mitt, will enable a t to readily adapt 1 do not consider to any particular foodie-1r, and it' [may be usefullynneotion With various and oii'iton'mtioshoot feeding hot is :pitPtlQ1llfl1'ly adapted for (H'lfi 111.. ti :in'vontion. re

t, or of the major tripping or small hand I loeonnso all use in connection with rotary sheet presses andfeeding of the type shown in my aforesaid patents.

In-said drawings Figure 1 is a diagrammaticside elevation of part of a printing press and automatic sheet feeding tripping mechanism embodying my invention. and showing parts in normal working position. I

Fig.2 is a detail sectional view of parts shown in Fig. 1. I v Figs. 3 and 3 represent a diagrammatic side elevation. similar to Fig. 1, but somewhat enlarged, and showing the parts in tripped position.

F 1g; 4 is a detail sectional view shown in Fig. 3.

Fig. 5 is a detail partly broken elevation of the. parts shown in Fig. 1 looking from the opposite side of the press. a

of 7 parts Fig. 6 is a' detail view of the detector mechanism.

Fig. '7 is an enlarged detail view of the cylinder grippcr controlling devices.

Fig. 8 is a sectiorxahview, line 88 .ig. 7.

Fig. 9 is a detail view of the gripper pin and gage in operating devices.

Fig. 10 is an enlarged lr-ottoni view of the devices operating the gage controlling pin.-

Fig. 11 is an enlarged side elevation of the various tripping devices adjacent the impression cylinder showing the parts in nor mal operative positions in full lines, and in tri ped positions in dotted lines.

11 the press indicated in the drawingin'. the

plate cylinder 1, carries two diametrically opposite printin Surfaces I, l; and the impression cylin er 2 has two diametrically opposite impression surfaces l, I. respectively provided with grippers 2f. 2* which may take sheets successively from separate feed tables (not shown) and present the sheets to the plates on the cylinder 1. as dcscribed in my aforesaid patents. I shall l'or brevity and clcarncss simply explain the invention as it the plate cylinder had but one printing siirla rc,'al|dthe impression cylinder but one impression surface and one set of grippers. and as it but one l'ccdcr was used.

Tim throw off (fev r Ms.

1n the form of press illustrated n the drawings 1 p'rel'cr to throw the impression on and oil by laterally shifting the imprcssion cylinder 2; and for this p llpusc each trunnion 2" of such cylinder may lie jourl press to the eccentric in which the other trunnion of cylinder 2 is journal ed, so that when shaft 3 is rocked both ends of cylinder 2 will *be similarly and simultaneously moved.

"The lever 3 has two arms, to one of which link 3" is pivoted, and to the other arm 3 is pivotally connected a double ended oscillatmg dog 4, which normally lies in inactive position opposite the notched edge of all oscillating lever 4", pivoted on the shaft 3? and having notches 4" in its periphery slightly 'longer than the length of the dog 4,. The lever 4 has a roller 4" onits end opposite the notch. which roller engages a groove in a cam 45 mounted on a Stud 4*, which can he driven hy'any suitablemeans, and should make one revolution .t'or each impression surface on the impression cylinder; that is in practice lever 4" should he oscillated once for each operative impression surface on the impression cylin'der during the revolution of such cylinder. Motion will not he imparted from lever 4" to the lever 3 unless dog l is thrown into engagement with notch 4".

Said dog 4 is shown aspivotally connect ed to the lower end of a rod 4 the other end of which is slidahly connected to a rod 4 I a spring 4" being arranged in the connection between the rods so as to allow a. slight relative movement of said rods. Rod 4-" is con-' nected to one arm of a bell-crank lever l. pivoted at its bend on any suitable part of the machine adjacent the hearing of cylin der 2, and the other arm of lcver l is pivotally connected by a link 4 to one arm of an oscillating lever 4 pivoted on a. suitable part of the machine. The other arm of said lever 4 is connected by a link 4' to a crank arm 5* on a rock-shaft 5i ahovc the delivery end of the table T, which shaft- .is adapted to be rocked by the usual means controlled by the sheet detectors, if a sheet is not fed down oi the table at the propcr time. I \V'hencvcr shaft Ii is rocked motion is imparted tothc arm 5 and from it. through the roumgctions described, to the lcvcr'l which in turn pulls rods 4 and' l upward. thereby rocking dog 4 so as to throw one cud of the dog into engagement with the notch l of lhc oscillating lever 4". whereupon on the next upward movement olthc'nolch l the lover-3" is swung upward."-(h v reason-of engagement of the lever end of dog 4 with nolch -l"' in lcvrr"Piand on this upward movement of lever 3' link i." and its connections rock the eccentric 3" so as to move cylinder 2 away from cylinder 1 and thus throw. oil' the impression. and the impression will re; main, off, until lcvcr Pi is moved downward again.

'lhc cylinder when thus tripped is intended to remain of? impression only during that part of its revolution when the sheet which should have been properly fed on its return of engagement W1 b "therewith so lever inal posi ion "taken by tl describe both feeder feedtable h fed to the g1 memes table T would hem l," printed., -----a-nd, the cylinder .ve thrown on. inn pressi ouiit.

the print 5 4 1s roekee so 01nd from notch -11. and

i er 2% will be .ret

er end .11 n merit urned to orig-- Asshown rod 4? is pivotelly eon ueeted to the end of dog t, end, i Blidebly lzmg'eee with. a, re suitably pivot 4; and on expansion, swing 1:;

nd the do;

rod 4}" betwei guide 4. spring the tore put und when lever 3 is thrown 1.11., W sequently when the ll ez tr rook end m 4" in lever it, of level it", let throlixgh link: throw; the cylinder E2 on ii sheet lies nwhile been {ted on th limreseirm 7 So l'er the o ,hrow oil device" 1 are employe ens for inn re on. surface .eedmg its for new:

these devices :hfirrin no not of e,

inventimi it nun meehiuiism in iers of impre he described in my said The sheet feeder and .n detail. is provided, wi jfoi: entoumti .elly trip' 'iing the strong on r 4; said i7 dog 4 to y n." er 1 withinoleh. that upon the retem stroke lnieltwerd u n d El and rr in. out

I, initil rod 4: is but if sheet has not at the cylinder ne time reeei'v l thrown.

may

[l ly its The llli d jlervieee illusr the pii-ewnt invention.

other end. ising guide it; to the frame adjacent dog end If ymsitionshown in Fi i V L tinted in the drawings is of the t pe illustrated innly Patent No. 1,082,15 4, dated Dee. portimie oi? this feeder as are relevant to To the shaft 5 is atteehed a segment 5 end on the shaft is a loose arm 5", beside the segment 5, to which arm eolmected one end of a rod 5 that is pivotally connented at its forward end to a pivoted lever 49* wliieh is oscillatedby a cam 49 attached to a driven she-ft 49 (see Patent 1,082,374) by which arm 5 will be continuously rocked bet-1c and forth. To the arm 5 is pivoted e pawl 5 Whieh is provided" with a pin 5" on one side edepte to engage a notch in the upper end of smear-m 5 plaoei'i beside segment 5" and fast on sleeve 5 loosely sinsronnding shaft 5. Ann. is normally held against the pin 5 esbv means of a spring As arm F is osoillated bylink 5* the pewl ii is oseilla t e'd back and forth elmveotlie segment 5 but'is held out of engngenient therewith by pin 5' engaging arm 5 because the spring 5" causes arm 5 to kee in emitaet with pin 5" and hold the paw reis d; and also causes sleeve 5 to rock with arm 5 unless prevented. i

To the sleeve 5 are attached depending arms 5 to which detector fingers 5 are atturning when arm 5" moves backward, and

tore pin 1" will disengage min 5, and l 5 will. thereupon drop into engage? ,ment with segment 5 and the letter Will tl'ltfi'tklllllfi'l'l be moved with arm 5 thereby rocking shaft 5 and causing the trip of the throw-oil" devices, by means of the arm 5 191.3. I will briefly describe such id of table T, endwill arrest the sleeve teohed- Said fingers normally rest-upon the on shaft to which is connected the'rod 4" that (IOlltl'OlS the throw off tripping devices. The pin 5" can. automatically reiingage the not in arm. 5 arm 5 rocks after the ll, .eetor lingers are reset. i

i The shei 5 may be normally held in the gs. 1 and 5 and retrained to normal,position'iwhon permitted by any suitable means as shown and dein my Patent 1,082374 or by other suitable means. I have conveniently shown *od' 5 pivoted to an arm- 5* onshaft 5 m l pri d by in spring 5 for the purpose.

The sheet 1 mper S may be fed forward in the usual moon 7 in :rny Patent 1,0852,iii't until they are aiu rested by sheet stops or gages 8 in position to be taken by the cylinder grippers (see post).

no i

The combing rollers 6 are mounted upon a suitably driven shaft 6* journaled in arms 6" attached to rock shaft 6 suitably journaled in the side fraliiieof the feeder, and one arm 6* is connected by links 6 to one arm 6 of a compound lever hung on the shaft 6 This compound lever has an arm 6 which may carry a frictional i'oller engaging a cam 6 on the driven shaft 49,

which is rotated by suitable means, so as to raise and lower the combing rollers at the proper times, so they will advance a sheet to the seizing rollers 6, 6 and toward the cylinder when the feeder is normally operating. The lever 6 is also provided with anarm 6 which is adapted to be engaged by a catch 7 k to arrest and hold the combing rolls in ineffective position when the parts are tripped.

As shown in the drawings the catch lever 7 is attached to a rock shaft 7 journaled in the frame above or adjacent the rock shaft 6F. Shaft 7 has-an arm 7 which is normally pressed upward by a spring 7 see Fig. 3. On shaft 7 is an arm 7 to which is pivotally connected :1 rod 7, the other end of which iodextends through a slotted guide 7 attached to part of the framing adjacent the shaft 5, (Figs. 2 and 4); and rod 7 has a tooth 7 which. is adapted to engage the side of the guide 7 when the parts are in operative position (Figs. 1 and so as to hold catch 7 out of position to engage arm 6.

On the shaft 5 is a finger 5" which n.or-'

inally lies underneath the forward end of the rod 7. \Vhen the parts are in normal post hon the catch 7 is engaged with member 7,

' and holds shaft 7 andconnccted parts in the position shown in. Fig. 'l'against the tension [if the spring 7*; but "when the shaft 5 is actuated, as above described, the finger 5 disengagcs shaft 7" from member 7; Whereupon spring 7 rocks shaft 7 and throws the catch 7 into engagement with arm 6. thereby locking the combing rolls in inefl'ective position (Fig. 3-) and holding them thus till the operator restores the parts to normal position by rocking the shaft 7 by means of a hand lever 7" to disengage catch 7 and tension spring 7'. As long as the combing rollers are held raised (Fig. 3 sheets will not be fed down. so that when a defective or misplaced sheet is detected the next follovw ing sheet is stopped and will not be fed down until the defective or misplaced sheet is re moved.

The sheet stop cages.

The sheets are fed down against the usual frontcnd sheet gages 8; which are lowered at the proper time to stop the front edge of the sheet in position to be taken by the grippers, and are normally raised out of the way to permit'thecylinder grippers to 'take the sheet. The gages 8 are shown as connected to holders 8' strung on a rock shaft 8", which is normally rocked so as to depress the gages, by means .of a spring 8 (Fi 4) connected to a crank arm on the end 0 the shaft and an adjacent stationary part of the frame. In carryin out my present invention if a sheet is misplaced or defective I keep the gages down so that they will revent such sheet entering between the cy inders. For this purpose on the shaft 8 (Figs. 1 and 3) is loosely hung anoscillating lever 8 which carries a roller 8 on its outer end engaging sheet should be misplaced or defective I provide means whereby this pin 8 is retracted so that although lever 8 may rise, the pin 8 will not engage finger 8, and consequentl spring 8 will hold the gages down as in 'cated in Fig. 4 and thus prevent further forward movement of the sheet. The catch pin 8 may beoperated by any suit'able means, but [prefer to operate it by means of the devices which operate the cylinder gripper pins as hereinafter described.

The cylinder gripper trips.

The cylinder grippers 2 may be mounted on a gripper shaft 2 provided with a tumbler 2 on one end in the usual manner. A gripper tripping pin 9 is slidably mounted in a fixed portionof the frame adjacent the end of the cylinder and normally lies in po- I sition to engage the tumbler 2 (Fig. 7) when the grippers reach the proper position for closing upon the sheet positioned by the catches 8. The pin 9 is slidable and is provided near its outerend with a slot which is engaged by a cam member 9" on arm 9 of a compound lever 9 m pivoted at 9 onthe main frame. Said lever is provided with a short arm 9 which is engaged by an expansion spring 95 interposed between the arm 9' and a stop 9 attached to a suitable fixed portion of the frame, said spring tending to throw the lever into position to retract the pin 9 out of operative position.

The lever is held in position to normally hold pin 9 in operative position against the action of the spring 9 by means of a latch 10 (Fi 3) hung on a pivot 10 attached to a wita 1e part of the frame, said latch having a notched lower end 10 adapted to engage a in 9 on the arm 9 and hold the compound ever in the position shown in Fig. 1, with rin 9 under tension.

To 519 latch 10 is pivotally-connected a momma rod 10 which passes .imseiy through on one ettaehedto shaft 5, end s to 3 o; isstrungon rod 1W t w and the eoller 10 on 10, so that written s will thrmigh the st latch 10 out of engim so as to permit sprin pound lever end wi. w: ping pin out of opt otiw As the i then the sprin moment when. t the pressltore he v should he Xl .d., it provide it e W" cylinder 1, and Whie inder; and sold own 1H t .i' t with a roller or in 9* on or. i just before the time when the eylimh papers should close upon it sheet, and relj' W i of pin 9 a ..t the coil the detectors should find :1, thi feetive sheet and. sense a" tit to e 1.- as above described latch gaged from the throw theoon: tumbler pint will not til ed to engage e pin bell orenlr r in frame, end its oti' by a rod 11" to the i so that Whtmever downward, the melted, mid n return the compiound to he spring; Lies pin sion. the pnrte hm grip gier fingers ng: so that es tilt't out of Opikhtiilwd to operative po grippers when tiller Ji' pin 9 i W'iili. he i.

oint I'FOYldEtd a sheet fed down or ready to he the sh et is I in pt ill the parts will. be trinpel h and the tumbling; pin 9 retracted so as to Inevent the olosiiiig ted end of: that when tli tractedt so ti finger ti i'tfltliilll'til consequently the i under ten i sl'iown in h" tr returned to neonatal position so as to reto return to normal position, and then the st iet gages Wlllbfi raised and lowered at the p 1;" times, as required in the neutral operation of the press.

In the ordinary operation of the press salmon and indiosted. in the drawings and derihed in my ntor nseid "potent the cylinder ippers are closed upon the sl'ieet at the tel. ng point by pin if! end are opened atthe delivery polnt ns indicated by means of a pin 9; whiclii corresponds to pin 9 and. is preferably mounted on the. frame in position to be engaged by the tumbler 2" on the gripper shaft so as to open the rippers tl'ie :rnolnent that the sheet shoul be doli'verod" But if the cylinder grippers are not closed, at the taking point, the second pin 9? should also be thrown out so tha't it will. not operate the grippers, as it would then canoe thegrippers to close at the delivery point, and tl'ierefore the grippers erehly provided with a, cam slot like gripper pi S), which is engaged by a corn 9" on the end of arm 9 of the compound 'lever "l 49" that the pin 9 is thrown in and own out os end when the pin 9 is thrown in or thrown. out; consequently if the grippers ore not shifted at the taking point they pass the delivery point Without being shifted.

During the time that the; grippers are trnveling from the delivery to the gripping point the compound lever 9 4): is returned to normal position by the action of the compomid, lever 11-11 as above described. And if e sheet has been properly positioned then the gripper will take such sheet, but if it has not been properly positioned the pins 9W) will'be again retracted so that the gripper-s will nht take the sheet. When. a sheet is proper]; fed the cylinder will be eutomnticnlly thrown on im ression, and the oomponnd'lever W 9, will be locked down by the latch 10 so that the cylinder gripif an'imperfeet or misplaced sheet is found by the detector fingers the shaft 5 will he rocked and through the described connections the impress in will be thrown off,

t. t ed of the sheets will be stopped, the o'vflnder gri iipers Will be rerniered inefiecand onnot take a sheet, and the sheet s will H sin down so that the defective mmont jar or slide into the pi. and major heavy pols-thins of the Fl. ITIBC onism continue to go cyele oi" mcn'ennmts at speed tire the devices which practically handle the sheets are rendered inefi'ective.

A defective sheet will remain upon feed board until it is removed by the pressman,- and a misplaced sheet will remain upon the feed board until it isproperly positioned or removed, and the advance of the following sheets suspended until the defective position and the sheets can be immediately per-s, gages for arresting sheets in positionto fed and printed at the same speed at which the press was operating at the time the misplaced or defective sheet was directed; and thus no time is lost in stopping or slowing down or speeding 'up any heavynmving parts of the press feeder; and the only interruption and only delay in the printing operation the short time required for a misplaced sheet to bdpositioxwd or for the pressman to remove the defective sheet, and throw the lever 7 What I claim is:

1. In sheet printing mechanism, the combination of an impression cylinder, and a printing member co-acting therewith, said cylinder being provided with sheet gripedelivered to the cylinder grippers; means for throwing on and off nnpression, and means for renderm adapted to detect misplaced or defective sheets, and means whereby, when a defective or misplaced sheet is fed, the throw of! de- I vices are permitted to operate, the sheet gages are leftdown, and ,the means for rendering the cylinder grippers ineffective operate.

In sheet printing mechanism, the combination of an impression cylinder. and a printing member co-acting therewith, said cylinder being provided with sheet grip pers', gages for arresting sheets in position to be taken by the cylinder grippers; means for throwing on and oil impression, and means for rendering the cylinder grippers in0perative at the taking and delivery points; with devices adapted to detect misplaced or defective sheets, and means-controlled by said detecting devices whereby when a defective or misplaced sheet is fed down the throw oil devices are permitted to operate, the shectgagcs are left down, and the means for rendering the cylinder grippers ineflcctive op irate.

3. In sheet printing mechanism. the combination of an impression cylinder and a printing member co-acting therewith, said cylinder being provided with grlppers, sheet gages for arresting sheets in position to be taken by the cylinder grippers means the Then the pressman' the cyl i ndc r grippers ineffective at the ta 'ing point;' with devices for throwing on and 0E impression, and

. adapted to detect a misplaced or defective sheet fed to the cylinder, and connections whereby, if a defective or misplaced sheetis fed to the taking point, the sheet feeding devlces are held in ineffective position the sheet gages are left down to prevent theadvance of the sheet; the impression is thrown off and the cylinder grippers rendered ineffective.

4. In sheet printing i'ncchani. the combination of an impression cylinder and a printing member coacting therewith, said. cylinder being provided with grippers, shfltgages for arresting sheets in position to be taken by the cylindergr )QIS, means for throwing on and oil impression, and means for rendering the cylinder g pers incil'ectire; with devices adapted to detect a misplaced or defective sheet fed to the cylinder, and connections whereby, it a defective or misplaced sheet is fed to the taking point, the sheet feeding devices are held in ineffective position, the sheet gages are left down to prevent the advance of the sheets, the impression is thown oil, and the cylinder grippers rendered ineifectiva 5. In sheet printing mechanism. the corn bination of an impression cylinderand a printing member co-acting therewith, said cylinder being provided with grippers;

sheet ga es for arresting sheets in position to be ta (en by the cylinder grippers, automatic means for feeding the sheets to the cylinders, means for throwing the cylil'ider on and oil impression, and means for rendering the cylinder grippers ineffective, with devices adapted to detect a misplaced or defective sheet fed to the cylinder; means controlled by said detector devices, and connections between said detector controlled means the sheet feeding devices the throw off devices, the gripper controlling devices and the gage operating devices, whereby, if

a defective or misplaced sheet is fed to the taking poing, the sheet feeding devices are held in ine ective position; {the gages are left down to prevent the advance of the sheet; the cylinder is thrown off impression and the cylinder grippers rendered inefi'ective.

0. In combination a printing mechanism, sheet gages, a rock shaft for operating the ,gages, a lever adjacent the rock shaft, means ever; adapted to engage said finger to rock the shaft, and means-for shifting said pin into or out of fingerengaging position; with devices fordetecting a. misplaced or defective misplaced sheet is detected.

sheet end connections between said detecting devices and the in controlling devices whereby the letter is withdrawn so as to iet the gages stay-down! when a defective or 8..In' combinatin sheet printing mecha nism, a. feedv table, sheet stops and means whereby ,upon the presentetion of a misipla-ced or defective sheet' the taking of the sheet is prevented and the stops positioned to prevent the passage o'fsuch sheet between the printing members.

9. In, combinetion sheet printing mechanism, means-for feeding sheets to said printing mechenisni, sheet stops and, means --placed or defedtiv'e sheet the feed of sheets the, and

whereby upon the presentation of va misis stepped and the stops positioned toprevent the passage of such sheet between the printing members.

10. In combination sheet printing necha gr nism, ELIfBBd .teble, sheet stops and devices for detecting misplaced or defective sheets with means controlled by; the'detecting devices whereby: upon the presentation of a misplaced or defective sheet the taking of "splchshee't'is pr'evented,and the stops POSP tinned 'to prevent the passage of such sheet between the rinting members.

11.,In com ination sheet printing mechanism, sheet feeding devices, sheet stops, gripping'devices to take the sheets and de vices for detecting misple'ced or defective sheets with means controlled by. the (le .te'cting devices whereby, upon thepresentw tion of a misplaced or defective sheet the sheet gripping devices are rendered ineffecthe stops positioned to reven't' the fplassage ofjsnchsheet between t e. printing meme, ,12. In eomblnetion sheet prmt1n'g. -rneeha hers.

nisin, means-Sim automatically feeding sheets 1 said printing tine'cheni'sin sheet stops,-fsheet"tekmgfdvi'ces z nd'ineens :for @detectingf misplaced orde'fective sheets;

with means whereby nponthe' re'sentetion of agmisplaced oridefective sheet t e sheet taking 5s stops are positioned toprevent entry of such I sheet between the devices are rendered -inefiective, and the printing members. i

i 13. In combinatlon sheet printing incohegaiesnnd means for i the detecting devices "sheet the fee antoineticiilly feeding "sheets to said printing mechanism, sheet detecting misplaced or,

ective' sheetsj withymeanscontrol-led by whereby upon the resentation a mis )luced or defective of sheets s stopped, the sheet (means whereby;

placed'sheetfis detected, thefthrow off degages grippers meansfor throwin "and means for ren ering the cyhn ergr p taking devices are rendered ineffective, and

the gages are positioned to prevent entry sheets to said printing mechanism, a cyllinder having grippers, sheet gages and means for detecting misplaced or defective sheets; with means controlled by the detecting devices whereby upon the presentation of e misplaced or defective sheet the feedof sheets is stopped the rippers on the cylinder are rendered ine ectivc, the impression is thrown (iii, and the-gages positioned 'to prevent entry of such sheet between the printin members. 5' 15. n a. sheet printin mechanism; the combination of a eylin. .er provided with sheet grippers, means for arresting sheets in position to be taken by the cylinder grippers; and means for rendering the cyiinder grippers ineffective; with devices adapted to'detect misplaced or defective sheets, and

means whereby, when the detectors find e defective or niispieced sheet,the sheet in: resting means '18 positioned to mrrest the sheet end the means for rendering the said.

ippers ineffective operate.

16. In sheet printing mechanism, the cone bination of a cylinder provided with sheet grippers; means for arresting sheets-in position to be taken by the cylinder rippers;

and means for rendering the cylin er grip pers inefl'ective etthe taking and delivery hvith devices adapted to detect mis points; placed or defective sheets, and means con-j trolled by said grippers, gages for arrestin. sheets in.'posi-- tion tobe taken by the cy inder grippers;

mans for throwing: on and. oflt" im ression,

and meansfor rendering the cyiin er gripdevices whereby when a, de-v fective or misplaced sheet is detected the persfineifective; with devicesndepted to de tect 'misplaced or defective sheets, and when zit-"defective 'or this vices ere permitted to operate, the'sheet v are left-down, and the means for. rein derin the sj'n'id grippers ineffective operate.

18. n sheet printing mechenisnji, the com binetion' of a cylinder provided with sheet tion to be on and ofi .im ression,

pers ino" rative at the ,talnng and delivery points; witi'rdevices adapted. to detect 1nisplaced or defective sheets, and means controlled by said detecting devices whereby when a," defective or misplaced sheet is fed gages for arresting sheets in posil tekenby the cylinder grippers;

, pers ineffective operate.

.19. In combination sheet printing'mechanism including an impression member rm vide'd withfigrippers', a feed table, s set .gages and devices for detecting misplaced or defective sheets; with means controlled by the detecting devices whetebynpon the pres entation (if a misplaced or defective sheet the taking of such sheet by the grippers onthe impression-member is prevented, and the gages positioned to prevent the entry of i such sheet between the rinting member.

20. In combination sheet printing mechanism including an impression member provided with grippers, afeed table, sheet gages and devices for detecting misplaced or defective sheets; with means controlled by the detecting devices wherebyupon the presentation of a misplacedor defective sheet the sheet gripping devices on the impression member are rendered. inefiective, and the gages positioned to prevent the entry of such sheet between the printing members.

21. In a sheet printing mechanism, the combination of an impression cylinder and a printing member co-acting' therewith, said cylinder being provided with sheet taking devices; automatic means for feeding sheets to the oy'lindegsheet stops, means for throwing on and off impression, and means for rendering the cylinder sheet taking devices ineffective; with devices adapted to detect a misplaced or defective sheet; and means whereby, if a defective or misplaced sheet'is fed, the throw off devices are permitted to devices; automatic means for feeding sheets operate and. throw off the impression, the means =for rendering the cylinder sheet grasping devices ine ective also permitted to operate; and-the stops are positioned to prevent entry of such sheet between-the printing members. 7

22,111 a sheet rinting mechanism; the combination of an impression cylinder 21nd a printing member oo-acting therewith, said cylinder being provided with sheet grasping to the cylinder, sheet gages, means for 'throwiiig on and off impression,- and means for-rendering'the cylinder sheet grasping devices ineffective at thetaklng and delivery points; with devices adapted to detect a misplaced or defective sheet, and means whereby, iffa defective or misplaced sheet is fed, the throw all devices. are permitted to operate and throw off the impression, the

means for rendering the cylinder sheet grasping devices inefiective also permitted to'operatc, andxthe gages are positioned flto prevent entry of such sheet between. the

, printing members.

23. In sheet printing mechanism, the combination of an imp ession cylinder and a ages are left down, and.

printing member co-hcting therewith, said by said detecting devices; and connections between said detector controlled means, the sheet feeding devices, the throw off devices and the by, if a fective or misplaced'sheet is fed, the feed of sheets is stop ed, the impression is thrown off, and the cy ind'er grippers rendered ineffective.

24. In combination an impression cylinder having a grippershaft, and a reciprocatory gripper operating pin having a slot, a I

pivoted lever having a cam end adapted to engage the slot in said pin, a spring for moving said lever to throw the pin intomop; erative position, and means for holding the lever and. pin in operative position; with sheet detectors and connections Wherebythe lever is released and the pin moved into inoperative detectors nd an imperfect or misplaced sheet.

25. In combination a 'i-otary impression cylinder having sheet grippers, and slotted pins adaptedto, operate the grippers at the taking and delivering points; with an oscillating lever having cam portions engaging the slots in the pinsand adapted in one position to hold the pinsin operative'position,

. means for throwing the lever to shift the pins'to inoperative position; and means for normally locking the lever with the pins 'in operativeposition.

26. In combination a rotary impression cylinder havingsheet grippers, and slotted pins adapted to operate the grippers at the.

taking and delivering points; an oscillating lever having cam portions engaging the slots inthe pins and adapted in oneposition to hold the pins in operative-position, means for throwing the lever to shift the pins to inoperative: position; and means for normally locking the leverwith the pins inoperative position; with sheet detecting means}; and connections whereb when a misplaced or im erfect sheet is ed the said lever is un-v loc ed, and the pins thereby thrown into inoperative position.

.' In combination mechanism for operatgripper controlling devices; where= position by the spring when the .ing upon-sheets, means for directing sheets thereto, a sheet stop, meansfo'r automaticalliy moving such etc into and out .of the pat ofthe sheets,an meanswhereby upon the presentation of a misplaced or defective sheet such stop is allowed to remain in the path of such sheet. to prevent its forward movement.

28. In combination sheet printing mechanism, meinis tor feeding to said print-' ing mechanism": positive sheetstl'ip, means remain in the path of misplaced or defective sh forautometically moving suchstop into and. out of the Path of tlilesheets and meeting means whereby upon the pn entstion of n misplarired or defective sheet the feed, of sheets is stopped and said to prevent its snisni.

uting mochaprintpassing to the printing me :29, In combinution sl" ll. stop is permitted to oi: the sheet, and the by the printing mechastolirpcd, remain in the pet taking of such shcct nisln nreveni H A i n] in on sheet printing mechanism, mm, feeding sheets to' snid printing i'l'iechmi at positive sheet stop, means for antr'imeticnlly n'ioving such stop into and. out of the path of the sheets; and co-ucting means whereby 11,011 the presentation of e .t the to "i .f

sheets is stopped, said remain in the path of the sheet to arrest it, the taking of such sheet by the printing mechanism is prevented, and the inmression is also thrown off.

31, In comhii'iation n'lechnnisrn for open sting upon sheets, means for directil'ig sheets thereto, :1 sin; stop, l'l'lflitIl "whereby uponv the present In. of mispl i or defective sheet such stop is introdi path of such sheet to imwent movement; and cleans for mutically removing the of a properi s iiositioned 32. In mmhiimt n she anism, meensfor hoe u osaidprinting mechanism, a po sheet stop, coacting Wimreby upon the presentstion of a misplaced or defective sheet the feed of sheets stopped, end, said step is its for-Word ttcr onto the path beet,

introduced into the path of the sheet to ar rest it; and means for thereafter automatiinto the path of the sheet to arrest it, and

the taking of such sheet by the printing mechanism is prevented; and means for thereafter automatically removing the stop from the path. of a properly positioned perfeet sheet.

-- 84. In combination mechanism for operatinguponsheets, including a member having pp allowed to ed into the defective sheet such stop is introduced into the pathof the sheet to arrest it and the grippers on said member are rendered ineffective to take such sheet;

35. In combination mechanism for operating on sheets, "means for directing sheets to said mechanism, means for detecting mis" plsced or defective sheets, a sheet stop; and

co-acting meenscontrolled by the detecting meclmnism whereby upon thev presentation 3 f of a misplaced or defective sheet the stop is introduced into the path of the sheet to prevent such sheet passing the registering point and the devices for taking the sheet are rendered iriefiective.

36. In combination mechanism for operat-' ing on shcets,means for directing sheets to such mechanism, means for detecting defectivev or in'ipro'perly placed sheets; means whereby upon the presentation. of amisplaeed or (,lefective sheet the sheet stop is permitted to remain in the path of the sheet to arrest such sheet; and means for thereafter automn-timlly removing the stop from the path of a propcrlyrjpositioned sheet.

37. In combination sheet printing mecha nism, means for directing sheets to the printing mechanism, means for detecting misplziccd or defective sheets, a sheet stop; and

co-ucting means whereby upon the resentetion of a misplaced or defective eet such stop is permitted to remain in the path of such sheet, the sheet taking devices of said mechanisms-re rendered incfl'ective, and the impression is thrown 011'.

38. In combination sheetprinting mechanism including a gripper cylinder; means for directing sheets to the printing mocha nisrn, means for detecting misplaced or defective sheets, a sheet eto and co-octing means controlled by the etecting mechm nism whereby upon the presentation of a misplaced or defective sheet such stop prevents such sheet passing the registering point, the sheet taking devices or grippers on the cylinder-ere rendered inefi'ective the impression is thrown 011', and. the feed oi the 1 sheets is stopped.

39. In combination sheet printing mechanism, means for directing sheets to the print inn; mechahism, means for detecting mised or defectivesheets, a; sheet stop; coco v n? means whereby upon me presentation of'o misplaced or defecti, sheet such stop is permitted to remain in the path'of such sheet, the sheet taking devices of said mechanism are rendered ineffective, and the impression is thrown off; all means for thereafter automatically removing the from the path of a properly position sheet. v

' 40. In combination sheet printing mechanism including a. gripxper cylinder, means for directin sheets to t e print mechanism, means or detecting misplace or defective sheets, a sheet stop; co-acting means eontrolled by the detecting mechanism whereby upon the presentation of a misplaced or defective sheet such stop prevents such sheet passing the registering point, the sheet taking devices or grippers on the cylinder are rendered inefl'ective, the impression is 10 thrown 01f, and the feed of the sheets is stopped; and means for thereafter automatical y removing the stop from the path of a properly positioned sheet.

In testimony that I claim the foregoing 15 as my own, I affix my signature.

BURT F. UPHAM. 

